From nobody Wed Nov 12 11:49:54 2025 Delivered-To: importer@patchew.org Received-SPF: pass (zoho.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Authentication-Results: mx.zohomail.com; dkim=fail; spf=pass (zoho.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=fail(p=none dis=none) header.from=redhat.com ARC-Seal: i=1; a=rsa-sha256; t=1570208884; cv=none; d=zoho.com; s=zohoarc; b=e2neteMq1oPvMzrvNYnCEkpAqsMDCSsbNbWo6O2QST5acfzrUWDORZDLt9CGNpQX06m1nGRdxjQ5ZHf0hp+Q/zrwxNgAkTPWYfpyLH/MPrFMZdjJN2fjVH2hp9V5n4FscoV+JsaOSWzGnPBUhdBjR7VWUuk5Lic2EWSAF0J/lAc= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zoho.com; s=zohoarc; t=1570208884; h=Date:From:In-Reply-To:List-Subscribe:List-Post:List-Id:List-Archive:List-Help:List-Unsubscribe:Message-ID:References:Sender:Subject:To:ARC-Authentication-Results; bh=Dzd4Mr7ZIdxJK23W1XqRBzN6e9anASFYpHHxSbZiu7I=; b=NKWNh91HHXUWLRkIGQu1gMU7vcqqyxQnx5xdLvLbWPllafR9a9e94/TYz60vc2gbPmrhBMKYpTO2YTf1VcQu5Vc3dQfPEeeLo04C9UCcj0USZbmKCjATbg1T/H7h5t0K1Q+/TyGE1YPyXbmL07Fdd7uMXbB8ot84zhfgX+gtsLI= ARC-Authentication-Results: i=1; mx.zoho.com; dkim=fail; spf=pass (zoho.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=fail header.from= (p=none dis=none) header.from= Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 1570208884679172.52359172076865; Fri, 4 Oct 2019 10:08:04 -0700 (PDT) Received: from localhost ([::1]:50662 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1iGR3j-0003UK-27 for importer@patchew.org; Fri, 04 Oct 2019 13:08:03 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:51143) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1iGQvc-0007SU-6L for qemu-devel@nongnu.org; Fri, 04 Oct 2019 12:59:41 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1iGQvZ-0001xI-Ga for qemu-devel@nongnu.org; Fri, 04 Oct 2019 12:59:38 -0400 Received: from mail-wm1-x343.google.com ([2a00:1450:4864:20::343]:55812) by eggs.gnu.org with esmtps (TLS1.0:RSA_AES_128_CBC_SHA1:16) (Exim 4.71) (envelope-from ) id 1iGQvZ-0001wo-9n for qemu-devel@nongnu.org; Fri, 04 Oct 2019 12:59:37 -0400 Received: by mail-wm1-x343.google.com with SMTP id a6so6542802wma.5 for ; Fri, 04 Oct 2019 09:59:37 -0700 (PDT) Received: from 640k.localdomain ([93.56.166.5]) by smtp.gmail.com with ESMTPSA id u7sm7041270wrp.19.2019.10.04.09.59.35 for (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Fri, 04 Oct 2019 09:59:35 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=sender:from:to:subject:date:message-id:in-reply-to:references; bh=Dzd4Mr7ZIdxJK23W1XqRBzN6e9anASFYpHHxSbZiu7I=; b=ACatc0j1FYuAcTaTIP7Ccau5wEDVSYh2NQx/E12DnMQdUCVquNVy7ujYIS9MTHJOIt JU+ZzhIjpvwbOFIQxOaXA99tYNTedI/Nw8vm3vk3vzEijjq8jH8dXlTzdd2rgrx3gMEA sZFnm9vQIK+zDyw/7Jz3g2l+Emubb+X2rwKtb5vQbxNRwEl+4bk8yzZHgdwwfJVWwWOI dGChAVww+0rZT8kLLhyiYznylmTqhh1moH/YNiZ9PlwY3l2pL7rFHldK5HSa7MTxvqz+ Kiqo88m6It7FX+RQP6M/293pO49XjFc8BBqwlKPkGV9vVAm1aeUUJ6UHgmcowWHf++5S kckg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:sender:from:to:subject:date:message-id :in-reply-to:references; bh=Dzd4Mr7ZIdxJK23W1XqRBzN6e9anASFYpHHxSbZiu7I=; b=OgVhfIOjznAW8qLjg1SwGJf9Sq+2n8b/TaMjN5dcfwILJ4zsORx0mOmEE6bkL35If1 ZwdVFuDmV9lfJuG0VoVjKu/PcMSByBZQypfmryWE0KbECzUgMHsmBxLgLV5ldt+YS/JY 51URet1UisV6dWHYQ/d8DmPBymckHpvHXcm4E/Gon6vdZSQh1IZe04POiCGRHgqj3bdc ncJmudElcvysuqPkXEV1P+LQYGcM50lRxaw3J7is17++1VTNXDFxVBFRs5/hOabQcGs2 t1cA31qvk9eOUF/GCluYtLJ4/UHdW0rPWyqld241igYjdfotDAdzOyuw4nNvPDIWtQH9 Y8FA== X-Gm-Message-State: APjAAAXbLNQGgmOB/P08NZhOEKXBjIFN7ILYnQoWd68R/MR+5SVNRbQc pU3wG8/F2HqgFxs4ApRfgiNfEDbu X-Google-Smtp-Source: APXvYqzqXwU4GTe/MrBoAyc3DixU96dJAZKd2S1MXxJJAZyTtSf7oMB3wrnniutk5SgnxnPQLa78/Q== X-Received: by 2002:a1c:6841:: with SMTP id d62mr11950449wmc.48.1570208375936; Fri, 04 Oct 2019 09:59:35 -0700 (PDT) From: Paolo Bonzini To: qemu-devel@nongnu.org Subject: [PULL 28/29] target/i386: work around KVM_GET_MSRS bug for secondary execution controls Date: Fri, 4 Oct 2019 18:59:22 +0200 Message-Id: <1570208363-11948-8-git-send-email-pbonzini@redhat.com> X-Mailer: git-send-email 1.8.3.1 In-Reply-To: <1570208363-11948-1-git-send-email-pbonzini@redhat.com> References: <1570208363-11948-1-git-send-email-pbonzini@redhat.com> X-detected-operating-system: by eggs.gnu.org: Genre and OS details not recognized. X-Received-From: 2a00:1450:4864:20::343 X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail-DKIM: fail (Header signature does not verify) Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Some secondary controls are automatically enabled/disabled based on the CPU= ID values that are set for the guest. However, they are still available at a global level and therefore should be present when KVM_GET_MSRS is sent to /dev/kvm. Unfortunately KVM forgot to include those, so fix that. Signed-off-by: Paolo Bonzini --- target/i386/kvm.c | 17 +++++++++++++++++ 1 file changed, 17 insertions(+) diff --git a/target/i386/kvm.c b/target/i386/kvm.c index 45f0a1f..be4bbfb 100644 --- a/target/i386/kvm.c +++ b/target/i386/kvm.c @@ -479,6 +479,23 @@ uint64_t kvm_arch_get_supported_msr_feature(KVMState *= s, uint32_t index) value =3D msr_data.entries[0].data; switch (index) { case MSR_IA32_VMX_PROCBASED_CTLS2: + /* KVM forgot to add these bits for some time, do this ourselves. = */ + if (kvm_arch_get_supported_cpuid(s, 0xD, 1, R_ECX) & CPUID_XSAVE_X= SAVES) { + value |=3D (uint64_t)VMX_SECONDARY_EXEC_XSAVES << 32; + } + if (kvm_arch_get_supported_cpuid(s, 1, 0, R_ECX) & CPUID_EXT_RDRAN= D) { + value |=3D (uint64_t)VMX_SECONDARY_EXEC_RDRAND_EXITING << 32; + } + if (kvm_arch_get_supported_cpuid(s, 7, 0, R_EBX) & CPUID_7_0_EBX_I= NVPCID) { + value |=3D (uint64_t)VMX_SECONDARY_EXEC_ENABLE_INVPCID << 32; + } + if (kvm_arch_get_supported_cpuid(s, 7, 0, R_EBX) & CPUID_7_0_EBX_R= DSEED) { + value |=3D (uint64_t)VMX_SECONDARY_EXEC_RDSEED_EXITING << 32; + } + if (kvm_arch_get_supported_cpuid(s, 0x80000001, 0, R_EDX) & CPUID_= EXT2_RDTSCP) { + value |=3D (uint64_t)VMX_SECONDARY_EXEC_RDTSCP << 32; + } + /* fall through */ case MSR_IA32_VMX_TRUE_PINBASED_CTLS: case MSR_IA32_VMX_TRUE_PROCBASED_CTLS: case MSR_IA32_VMX_TRUE_ENTRY_CTLS: --=20 1.8.3.1